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    Global Stabilization of Marine Risers with Varying Tension and Rotational Inertia

    Access Status
    Fulltext not available
    Authors
    Nguyen, T.
    Do, Khac Duc
    Pan, J.
    Date
    2014
    Type
    Journal Article
    
    Metadata
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    Citation
    Nguyen, T. and Do, K.D. and Pan, J. 2014. Global Stabilization of Marine Risers with Varying Tension and Rotational Inertia. Asian Journal of Control. 16 (5): pp. 1448-1458.
    Source Title
    Asian Journal of Control
    DOI
    10.1002/asjc.882
    ISSN
    1561-8625
    School
    Department of Mechanical Engineering
    URI
    http://hdl.handle.net/20.500.11937/48186
    Collection
    • Curtin Research Publications
    Abstract

    This paper presents a design of boundary controllers implemented at the top end for global stabilization of a marine riser under environmental loadings. Based on the energy approach, nonlinear partial differential equations of motion including varying tension and rotational inertia for the riser are derived. The Lyapunov direct method is used as a design tool to design the boundary controller comprising of forces and moments to compensate rotational effects. It is shown that the proposed boundary controllers can effectively reduce the riser's vibrations. Proof of the existence and uniqueness of the solutions of closed loop systems are provided based on the Galerkin approximation method. Stability analysis of the closed-loop system is performed using the Lyapunov direct method. Numerical simulations illustrate the results.

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